Optimized focusing sub-wavelength TM grating couplers in IMOS platform

A. A. Kashi, A. J. Millan-Mejia, J. J. G. M. van der Tol, M. K. Smit and Y. Jiao
Proceedings of the 22nd Annual Symposium of the IEEE Photonics Society Benelux Chapter, 27-28 November 2017, TU Delft, Delft, The Netherlands.
Publication year: 2017

Abstract

We demonstrate a deep-etched TM grating coupler for the InP membrane on silicon (IMOS) platform. Simulation and experimental results show these gratings feature low insertion loss, good coupling efficiency, low reflection and small footprint, which allows to couple light in and out of the chip efficiently.

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